body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f4f4f9;
  color: #333;
}

header {
  text-align: center;
  background-color: #282c34;
  color: #fff;
  padding: 20px 0;
}

nav {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 10px;
}

nav button {
  padding: 10px 20px;
  font-size: 16px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

nav button:hover {
  background-color: #ddd;
}

nav button.active {
  background-color: #333;
  color: #fff;
}

main {
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.tab-content {
  display: none;
  width: 100%;
}

.tab-content.active {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}

#members-container {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
}

.member-card {
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 15px;
  width: 30%; /* 3 items per row */
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  text-align: center;
  box-sizing: border-box;
}

.member-card h2 {
  margin-top: 0;
}

.badges-container {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 10px;
}

.badge {
  position: relative;
  width: calc(20% - 10px); /* 5 badges per row */
  max-width: 70px;
  height: 70px;
  cursor: pointer;
}

.badge img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  transition: transform 0.3s ease;
}

.badge-info {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  padding: 5px;
  border-radius: 5px;
  font-size: 12px;
  text-align: center;
  display: none;
}

.badge:hover .badge-info {
  display: block;
}

#leaderboard-container {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.leaderboard-item {
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 8px;
  margin: 10px 0;
  padding: 15px;
  width: 400px;
  text-align: center;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.leaderboard-item h3 {
  margin: 0;
}

.leaderboard-item p {
  margin: 5px 0 0;
  font-size: 16px;
  color: #666;
}